Foldable Hinge Linkage for Synchronous Rotation Accuracy
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Solution Overview
Problem
Current rotating shaft structures for foldable electronic devices are complex and require high manufacturing and assembly accuracy, leading to increased costs and potential errors in synchronous transmission.
Innovation Solution
A rotating shaft mechanism comprising a rotating shaft base, first and second rotating members, and a linkage assembly with sliding blocks and sliding portions, allowing for synchronous rotation without the need for complex gear structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex gear transmission mechanism is adopted in the rotating shaft structure, then the foldable structure can be realized, but the manufacturing accuracy and assembly accuracy requirements increase, resulting in increased product costs
Solution Approach 1:
The patent extracts and removes the complex gear transmission mechanism from the rotating shaft structure, replacing it with a simplified direct connection design. The rotating shafts are directly connected to the housing without intermediate gear components, thereby eliminating the need for complex gear transmission while maintaining the foldable function and improving manufacturing and assembly accuracy.
Solution Approach 2:
Instead of using gears to transmit rotation between shafts, the patent inverts the approach by directly connecting the shafts to the housing structure, allowing the housing itself to serve as the transmission medium. This inversion simplifies the structure by eliminating the gear mechanism while achieving the same rotational transmission function.
2Reliability
If a complex gear transmission mechanism is adopted in the rotating shaft structure, then the foldable structure can be realized, but the assembly accuracy requirements increase, resulting in increased product costs
Solution Approach 1:
The patent extracts and removes the complex gear transmission mechanism from the rotating shaft structure, replacing it with a simplified direct connection design. The rotating shafts are directly connected to the housing without intermediate gear components, thereby eliminating the need for complex gear transmission while maintaining the foldable function and improving manufacturing and assembly accuracy.
Solution Approach 2:
Instead of using gears to transmit rotation between shafts, the patent inverts the approach by directly connecting the shafts to the housing structure, allowing the housing itself to serve as the transmission medium. This inversion simplifies the structure by eliminating the gear mechanism while achieving the same rotational transmission function.
3Reliability
If a complex gear transmission mechanism is adopted in the rotating shaft structure, then the foldable structure can be realized, but the product costs increase
Solution Approach 1:
The patent extracts and removes the complex gear transmission mechanism from the rotating shaft structure, replacing it with a simplified direct connection design. The rotating shafts are directly connected to the housing without intermediate gear components, thereby eliminating the need for complex gear transmission while maintaining the foldable function and improving manufacturing and assembly accuracy.
Solution Approach 2:
Instead of using gears to transmit rotation between shafts, the patent inverts the approach by directly connecting the shafts to the housing structure, allowing the housing itself to serve as the transmission medium. This inversion simplifies the structure by eliminating the gear mechanism while achieving the same rotational transmission function.
Data Source
AI summary
An electronic device and a foldable assembly are provided, the electronic device includes a first main body, a second main body, and a rotating shaft mechanism which includes a rotating shaft base, a first rotating member, a second rotating member, and a linkage assembly; and the linkage assembly includes a first linkage member and a second linkage member, the first linkage member and the second linkage member each have sliding blocks, the first rotating member and the second rotating member each have sliding portions in sliding fit with sliding blocks. The first rotating member further has a first main body portion, the first sliding portion is disposed at one side of the first main body portion, and the first sliding block is in sliding fit and rotating fit with a first sliding groove defined between the first sliding portion and the first main body portion.